. >> president obama and mitt romney meet in their first presidential debate. watch and engage with c-span, with our live debate preview. fallen by two ways to watch the debate at 9:00. on c-span, both candidates on screen the entire debate. and then on c-span2, multiple angles. in about 15 minutes, we will go to the newseum here in washington where the national communications association held a panel with communications scholars on how to watch the debates, what viewers should look for. live coverage begins at 1:00 eastern. tonight, we continue our live campaign 2012 coverage. three congressional debates to show you. we will go to the university of massachusetts for a debate between incumbent president scott brown and elizabeth warren. c-span will have coverage of that. that will be followed at shinnecock by -- 8:00. c-span2 will have eric cantor as she squares off against a former army colonel when powell. live coverage at 7:00 eastern on c-span2. "usa" richard walsh sat down with an interview with ross perot. c-span cameras were there to record the interview